What is the meaning of EOS in blood work results?

EOS is eosinophil. Eosinophil is a white blood cell that helps your immune system. If you have certain diseases your EOS count will be higher. Allergies, inflammation, asthma, parasitic infections, Cushing's disease are a few things that would make your EOS count go up. An EOS test can also help diagnose drug reactions.

EOS stands for eosinophils,which are one type of white blood cell your body creates to fight foreign objects. An elevated level is often seen with an allergic reaction, a parasitic infection or possibly a deleterious reaction to a medication. Eosinophils can be elevated with certain diseases, and if necessary, an absolute eosinophil count will be done from a blood smear.